buildroot: bump to 2023-11

README.md

@@ -59,8 +59,11 @@ container. It has all the dependencies needed to build the firmware.
 > amount of space reserved and free in the the LIMA VM of Docker or Rancher
 > Desktop.
 
-The build process uses [Buildroot](https://buildroot.org/) further documentation
+The build process uses [Buildroot](https://buildroot.org/) for further documentation
 can be found [here](https://buildroot.org/downloads/manual/manual.html).
+Buildroot is not included in this repository and needs to be downloaded once
+before building. We included a script (`setup_build.sh`) that does everything
+for you. Be aware that this script must be rerun when the buildroot version is updated.
 
 ### Using Docker on Linux
 

setup_build.sh

@@ -1,8 +1,17 @@
 #!/bin/bash
+#
+# This script downloads, unpacks and installs the buildroot system to a given
+# location. The default install location will be used when no install dir is
+# passed, this is the root directory of this repository.
+#
+# Usage:
+#
+#   ./setup_build.sh <install dir> (optional)
+#
 
 download_dir=$(mktemp -d)
 install_dir="$1"
-buildroot_url='https://buildroot.org/downloads/buildroot-2023.08.tar.gz'
+buildroot_url='https://buildroot.org/downloads/buildroot-2023.11.tar.gz'
 buildroot=$(basename "$buildroot_url")
 buildroot_folder="${buildroot%.tar.gz}"
 project_root="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"